Andreas Ansmann
32Patents
7h-index
34Co-inventors
61Inventor score
Filing activity: Aug 23, 2000 → Feb 1, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6462220B1 | Method for simultaneous preparation of 6-aminocapronitrile and hexamethylene diamine | Chemistry; Metallurgy | 30 | Expired |
| US6265602A | Method for hydrogenating aliphatic alpha-, omega-dinitriles | Chemistry; Metallurgy | 22 | Expired |
| US6365790B2 | Preparation of C10-C30-alkenes by partial hydrogenation of alkynes over fixed-bed supported palladium catalysts | Chemistry; Metallurgy | 22 | Expired |
| US6297394A | Iron-based catalyst for hydrogenating alpha-, omega-dinitriles | Chemistry; Metallurgy | 16 | Expired |
| US6469211B2 | Hydrogenation of nitriles over Raney catalysts | Chemistry; Metallurgy | 14 | Expired |
| US6828468B2 | Preparation of higher &agr;, &bgr;-unsaturated alcohols | Chemistry; Metallurgy | 14 | Expired |
| US6852669B2 | Hydrogenation catalyst | Chemistry; Metallurgy | 8 | Expired |
| US6359178B1 | Method for producing hexamethylene diamine | Chemistry; Metallurgy | 5 | Expired |
| US6790996B2 | Supported cobalt catalysts for nitrile hydrogenations | Chemistry; Metallurgy | 5 | Expired |
| US7091153B2 | Hydrogenation catalyst | Chemistry; Metallurgy | 5 | Expired |
| US7256153B2 | Carrier catalytic converter for the selective hydrogenation of alkines and dienes | Chemistry; Metallurgy | 3 | Expired |
| US6878798B2 | Method for producing a polymer, using caprolactam | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6677486B2 | Hydrogenation of nitriles over Raney catalysts | Chemistry; Metallurgy | 2 | Expired |
| US6815388B1 | Method for activating passivated iron | Performing Operations; Transporting | 2 | Expired |
| US6972075B2 | Method for removing 6-aminocapronitrile from mixtures that contain 6-aminocapronitrile, adipodinitrile and hexamethylenediamine | Emerging Cross-Sectional Technologies | 2 | Expired |
| US6362332B1 | Coproduction of a cyclic lactam and a cyclic amine | Chemistry; Metallurgy | 2 | Expired |
| US6686465B2 | Preparation of cyclic lactams | Chemistry; Metallurgy | 2 | Expired |
| US7217818B2 | Purification of caprolactam | Chemistry; Metallurgy | 2 | Expired |
| US6278023A | Method for producing aliphatic alpha-, omega-diamines | Chemistry; Metallurgy | 2 | Expired |
| US7501047B2 | Method for purifying caprolactam | Chemistry; Metallurgy | 2 | Expired |
| US6905997B2 | Method for generating catalysts | Emerging Cross-Sectional Technologies | 1 | Expired |
| US6828457B2 | Method for reducing the content of an unsaturated amine in a mixture containing an amine and a nitrile | Chemistry; Metallurgy | 1 | Expired |
| US7582805B2 | Supported catalyst for the selective hydrogenation of alkynes and dienes | Chemistry; Metallurgy | 1 | Active |
| US6346641B1 | Method for simultaneous production of 6-aminocapronitrile and hexamethylenediamine | Chemistry; Metallurgy | 1 | Expired |
| US6362333B1 | Method for simultaneously producing a cyclic lactam and a cyclic amine | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.